WO3 nanosized gas sensitive powder synthesized by gas-state reaction

被引：0
|
作者：
Yu, Hua-Liang [1 ]
Huang, Shi-Zhen [1 ]
Lin, Wei [1 ]
Chen, Wei [1 ]
机构：
[1] Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, China
来源：
Chinese Journal of Sensors and Actuators | 2005年 / 18卷 / 02期
关键词：
Chemical sensors - Nitrogen oxides - Powders - Reaction kinetics - Semiconductor materials - Sensitivity analysis - Synthesis (chemical) - Tungsten compounds;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The preparation of material is critical to fabrication of gas sensor made from semiconductor. Nanometer WO3 was synthesized by gas-state reaction with tungsten filament and made into gas-sensor to NO2. The gas-sensing measurements results revealed that these sensors show a sensitivity about 10 when put into NO2 gas of very low density (about 10 -10) and respond quickly(about 1. 5 seconds). By analyzing micro-structure of the material, the mechanism of these sensors was uncovered.
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页码：325 / 328
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